find the initial velocity of car which have is stopped in 10 seconds by applying brakes. The retardation due to brakes is 2.5 meter per second sq

find the initial velocity of car which have is stopped in 10 seconds b

1.	find the initial velocity of car which have is stopped in 10 seconds by applying brakes. The retardation due to brakes is 2.5 meter per second sq
Answer» We have, a = -2.5m/s² (retardation is ALWAYS negative) t = 10sec v = 0. (because after applying brakes the car will finally STOP i.e, 0) u=? We KNOW the equation for motion: v=u+at v-at=u u=v-at u=0-(-2.5*10) u=0-(-25) u=0+25 u=25m/s Hope it helps. Please mark my answer brainliest! Thanks!